Chandigarh vs Cuddalore
Side-by-side air quality comparison between Chandigarh and Cuddalore.
Live AQI from Open-Meteo CAMS (~45 km global model, updated hourly). Multi-year history from CPCB station data via aqinow.co pipeline (2016–2024, station-level daily records).
AQI Comparison
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Chandigarh | Cuddalore |
|---|---|---|
| PM2.5(µg/m³) | 46.30 | 15.00 |
| PM10(µg/m³) | 63.60 | 18.20 |
| NO₂(µg/m³) | 30.10 | 15.90 |
| SO₂(µg/m³) | 10.30 | 10.00 |
| O₃(µg/m³) | 64.00 | 39.00 |
| CO(µg/m³) | 602.00 | 353.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chandigarh averaged an AQI of 153 while Cuddalore averaged 52 — a 101-point (194%) gap, with Chandigarh the more polluted and Cuddalore the cleaner of the two. On 319 days when both cities reported, Cuddalore was cleaner on 310 of them; the average daily gap was 113 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Chandigarh logged 0.3% Severe days and 39.9% Good-or-Satisfactory days; Cuddalore was 0% Severe and 90.6% Good-or-Satisfactory. Longest clean-air streaks: Chandigarh 92 days, Cuddalore 34 days.
Year-over-year progress
The worst recorded day for Chandigarh reached AQI 452 at Sector-53 (CPCC) on 2022-11-09; Cuddalore hit AQI 329 at Kudikadu (TNPCB) on 2024-04-05.
Station-level disparity
Chandigarh spans 3 CPCB stations with a 43-point spread (min 107, max 150); Cuddalore spans 2 stations with a 11-point spread (min 46, max 57).
Verdict
🏆 Cuddalore has better air quality with an AQI of 25 compared to Chandigarh's 78. That's a significant difference of 53 points.